<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>字体图片</title>
    <link rel="stylesheet" href="./iconfont/iconfont.css">
</head>
<style>
    /* 如果要调整字体大小,注意: 选择器的优先级 要高于 iconfont类 */
   .iconfont {
    font-size: 50px;
    color: red;
   }
</style>
<body>
    <span class="iconfont icon-3column"></span>
</body>
</html>